How To Recover From Steam Locos Stanier 8f Steam Loco 500km/h Glitch

There is a bug that, when locomotive loses grip, huge wheel slip occurs, that makes wheels speed up to 500-600km/h. Then you loose control of accelerating, since you barely have control of wheel rotation speed. Hypothetically, since it didn't occur to me with Jubilee, for passenger services, putting combined brake lever to 100% is not a problem, because of stability of Mk1s, it can be a problem for freight services, but I didn't test it (yet). So I created a procedure of recovering, when ot occurs on higher speeds (Slippy conditions increase chances of that happening. When I was driving from Crewe to Edge Hill with snow, it happened twice.) It includes stopping, but lets driver regain control:
(NOTE:Not tested with unfitted stock, like mineral wagons, may not work with it)

1.Ensure you're ready to move steam brake via keabord/controller
2.Set combination brake lever to 17% (This is the highest position of CB lever, where you can force steam brake lever to be at 0%)
3.Force steam brake leaver to be at 0% via keabord/controller. Don't let it apply, until it's safe.
4. Close small ejector (If large ejector is opened close it too.) This will make brakes apply faster.
5. Wait for vacuum pipe gauge to show 0.
6. Wait some time, until you'll be sure, that brakes applied on the rear of the train.
7. If you did 6. right, you it is safe to stop holding steam brake at realease position. You also can set CB lever to 100%.
8. Wait for train to stop.
9. Wait for loco's wheels to stop rotating.
10. Continue service.

I hope it's helpful. (If it is you can mark it as helpful)

 

Not so much a bug but a game mechanic, it happens with any loco you wheel slip, it tries to calculate the speed it thinks your doing, as usual

once you stop wheel slipping the speed goes back to normal, it doesn’t even think you over speed as it never costs AP points when it happens

usually the wheel slips will always stop itself but if all else fails brake application puts an end to any speed it thinks you are doing

 

But I don't think steam loco should be able to suddenly loose grip to the point, where their wheels are faster than TGV's when setting it's record. Also you have no control then, so I think this is a problem. From my experience with this glitch I know, that if I didn't apply brakes, it would take a long time for wheels to even slow down to speed, that can be shown with graphical speedometer and not only see e.g. 200km/h.

 

Wheelslip is a real concern in operating a steam locomotive. I wouldn't worry too much about the numbers, you just need to be aware that it happens and how to control it.

The most famous case of wheelslip in the UK happened to Blue Peter in 1994.

https://www.lner.info/forums/viewtopic.php?t=177

 

true they shouldn’t to that point, but judging by the speed of the wheels at those points I don’t think the numbers are even correct at that point, I think the wheel slip gets a bit carried away with the speed calculator

 

Maybe yes, maybe not. I'm not a programmer. But imo it should be called "Stanier 500 glitch" just because game tells us about it.

 

Is this is what happened IRL to Peppercorn A2 Pacific Blue Peter in the '90s? She was heading off south from Durham on the viaduct up the hill to Red Hills cutting. The boiler primed and the pressure in the system was such that the driver couldn't close the regulator. When he tried to wind the reverser to neutral it kicked back so hard he was seriously injured. That few seconds of wheel spin caused serious damage to the locomotive and at an equivalent speed of "only" about 140mph.

 

140mph translates into about 225 km/h, so TSW version of "Blue Peter"'s accident is 2x faster+ you can close rverser and regulator.